putting together a computer right now, and I have this cooler. The mobo backplate that I took out had a layer of insulation as part of it. Given that the backplate that I'm supposed to replace it with is bare metal, I assume I need some sort of insulation layer between it and the back of the motherboard?

Do I just need to tape it down with electrical tape, or do I need to do anything more sophisticated?

The Hyper212 I had came with a layer of insulation on the 212 backplate already (the instructions on the Coolermaster site says to leave it on). Just installed it on top of the mobo plate already present.